Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent

Biodegradable and non-retrogradable starch-glycerol based films were obtained using citric acid (CA) as crosslinking agent at 75 °C. This material allowed decreasing water vapor permeability (WVP) more than 35%, remained amorphous for at least 45 days as a result of the network formed by the CA that...

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Autores principales:	Famá, Lucía Mercedes, Goyanes, Silvia Nair
Publicado:	2016
Materias:	Biodegradability Biodegradable edible films Citric acid Crosslinking Starch Amorphous films Biodegradation Composting Differential thermal analysis Gelation Glycerol Thermoanalysis Cross linking agents Degradability Edible films Process temperature Starch retrogradation Swelling process Water vapor permeability citric acid cross linking reagent dimethyl sulfoxide glycerol starch water bioremediation chemistry infrared spectroscopy microbiology permeability temperature thermogravimetry Biodegradation, Environmental Citric Acid Cross-Linking Reagents Dimethyl Sulfoxide Permeability Soil Microbiology Spectroscopy, Fourier Transform Infrared Temperature Thermogravimetry Water
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v138_n_p66_Seligra http://hdl.handle.net/20.500.12110/paper_01448617_v138_n_p66_Seligra
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01448617_v138_n_p66_Seligra
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spelling	paper:paper_01448617_v138_n_p66_Seligra2023-06-08T15:12:01Z Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent Famá, Lucía Mercedes Goyanes, Silvia Nair Biodegradability Biodegradable edible films Citric acid Crosslinking Starch Amorphous films Biodegradability Biodegradation Citric acid Composting Differential thermal analysis Gelation Glycerol Starch Thermoanalysis Cross linking agents Degradability Edible films Process temperature Starch retrogradation Swelling process Water vapor permeability Crosslinking citric acid cross linking reagent dimethyl sulfoxide glycerol starch water bioremediation chemistry infrared spectroscopy microbiology permeability temperature thermogravimetry Biodegradation, Environmental Citric Acid Cross-Linking Reagents Dimethyl Sulfoxide Glycerol Permeability Soil Microbiology Spectroscopy, Fourier Transform Infrared Starch Temperature Thermogravimetry Water Biodegradable and non-retrogradable starch-glycerol based films were obtained using citric acid (CA) as crosslinking agent at 75 °C. This material allowed decreasing water vapor permeability (WVP) more than 35%, remained amorphous for at least 45 days as a result of the network formed by the CA that avoided starch retrogradation and maintained the degradability in compost, occurring only six days after the films without citric acid. A simulation of the gelatinization process of starch-glycerol with and without CA, using a differential thermal analysis device, showed that the system with CA completed the gelatinization 5 °C before than the other and, CA first reacted with glycerol and then starch-glycerol-CA reaction occurred. The temperature at which the gelatinization process was carried out was critical to obtain the best results. An increase of gelatinization process temperature at 85 °C in system with CA, led to a worsening on WVP and its integrity after a swelling process with dimethylsulphoxide (DMSO), compared to the films processed at 75 °C. © 2015 Elsevier Ltd. Fil:Famá, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v138_n_p66_Seligra http://hdl.handle.net/20.500.12110/paper_01448617_v138_n_p66_Seligra
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Biodegradability Biodegradable edible films Citric acid Crosslinking Starch Amorphous films Biodegradability Biodegradation Citric acid Composting Differential thermal analysis Gelation Glycerol Starch Thermoanalysis Cross linking agents Degradability Edible films Process temperature Starch retrogradation Swelling process Water vapor permeability Crosslinking citric acid cross linking reagent dimethyl sulfoxide glycerol starch water bioremediation chemistry infrared spectroscopy microbiology permeability temperature thermogravimetry Biodegradation, Environmental Citric Acid Cross-Linking Reagents Dimethyl Sulfoxide Glycerol Permeability Soil Microbiology Spectroscopy, Fourier Transform Infrared Starch Temperature Thermogravimetry Water
spellingShingle	Biodegradability Biodegradable edible films Citric acid Crosslinking Starch Amorphous films Biodegradability Biodegradation Citric acid Composting Differential thermal analysis Gelation Glycerol Starch Thermoanalysis Cross linking agents Degradability Edible films Process temperature Starch retrogradation Swelling process Water vapor permeability Crosslinking citric acid cross linking reagent dimethyl sulfoxide glycerol starch water bioremediation chemistry infrared spectroscopy microbiology permeability temperature thermogravimetry Biodegradation, Environmental Citric Acid Cross-Linking Reagents Dimethyl Sulfoxide Glycerol Permeability Soil Microbiology Spectroscopy, Fourier Transform Infrared Starch Temperature Thermogravimetry Water Famá, Lucía Mercedes Goyanes, Silvia Nair Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
topic_facet	Biodegradability Biodegradable edible films Citric acid Crosslinking Starch Amorphous films Biodegradability Biodegradation Citric acid Composting Differential thermal analysis Gelation Glycerol Starch Thermoanalysis Cross linking agents Degradability Edible films Process temperature Starch retrogradation Swelling process Water vapor permeability Crosslinking citric acid cross linking reagent dimethyl sulfoxide glycerol starch water bioremediation chemistry infrared spectroscopy microbiology permeability temperature thermogravimetry Biodegradation, Environmental Citric Acid Cross-Linking Reagents Dimethyl Sulfoxide Glycerol Permeability Soil Microbiology Spectroscopy, Fourier Transform Infrared Starch Temperature Thermogravimetry Water
description	Biodegradable and non-retrogradable starch-glycerol based films were obtained using citric acid (CA) as crosslinking agent at 75 °C. This material allowed decreasing water vapor permeability (WVP) more than 35%, remained amorphous for at least 45 days as a result of the network formed by the CA that avoided starch retrogradation and maintained the degradability in compost, occurring only six days after the films without citric acid. A simulation of the gelatinization process of starch-glycerol with and without CA, using a differential thermal analysis device, showed that the system with CA completed the gelatinization 5 °C before than the other and, CA first reacted with glycerol and then starch-glycerol-CA reaction occurred. The temperature at which the gelatinization process was carried out was critical to obtain the best results. An increase of gelatinization process temperature at 85 °C in system with CA, led to a worsening on WVP and its integrity after a swelling process with dimethylsulphoxide (DMSO), compared to the films processed at 75 °C. © 2015 Elsevier Ltd.
author	Famá, Lucía Mercedes Goyanes, Silvia Nair
author_facet	Famá, Lucía Mercedes Goyanes, Silvia Nair
author_sort	Famá, Lucía Mercedes
title	Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
title_short	Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
title_full	Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
title_fullStr	Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
title_full_unstemmed	Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
title_sort	biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent
publishDate	2016
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01448617_v138_n_p66_Seligra http://hdl.handle.net/20.500.12110/paper_01448617_v138_n_p66_Seligra
work_keys_str_mv	AT famaluciamercedes biodegradableandnonretrogradableecofilmsbasedonstarchglycerolwithcitricacidascrosslinkingagent AT goyanessilvianair biodegradableandnonretrogradableecofilmsbasedonstarchglycerolwithcitricacidascrosslinkingagent
_version_	1768544173402619904

Biodegradable and non-retrogradable eco-films based on starch-glycerol with citric acid as crosslinking agent

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